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25506

Sigma-Aldrich

Potassium L-tartrate monobasic

puriss., meets analytical specification of Ph.Eur., BP, FCC, 99.5-100.5% (related to dried substance)

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Synonym(s):
Potassium bitartrate, L-(+)-Tartaric acid monopotassium salt, Potassium hydrogen L-tartrate
Empirical Formula (Hill Notation):
C4H5KO6
CAS Number:
868-14-4
Molecular Weight:
188.18
Beilstein:
6119985
EC Number:
212-769-1
MDL number:
MFCD00065392
UNSPSC Code:
51113400
PubChem Substance ID:
57648124
NACRES:
NA.22

grade

puriss.

Quality Level

200

Assay

99.5-100.5% (related to dried substance)

form

powder

optical activity

[α]20/D +8.0 to +9.2°

quality

meets analytical specification of Ph.Eur., BP, FCC

impurities

residual solvents, in accordance
≤0.001% heavy metals (as Pb)
≤0.05% oxalic acid

loss

≤0.2% loss on drying, 105 °C

anion traces

chloride (Cl-): ≤500 mg/kg
sulfate (SO42-): ≤100 mg/kg

cation traces

As: ≤1 mg/kg
Pb: ≤10 mg/kg

application(s)

pharmaceutical (small molecule)

SMILES string

[K+].O[C@H]([C@@H](O)C([O-])=O)C(O)=O

InChI

1S/C4H6O6.K/c5-1(3(7)8)2(6)4(9)10;/h1-2,5-6H,(H,7,8)(H,9,10);/q;+1/p-1/t1-,2-;/m1./s1

InChI key

KYKNRZGSIGMXFH-ZVGUSBNCSA-M

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Application

Potassium L-tartrate monobasic can be used as a reducing agent to synthesize:
  • Gold, palladium, silver and platinum nanoparticles from their salts.
  • Polyvinylpyrrolidone capped platinum (PVP-Pt) nanoparticles from chloroplatinic acid and PVP.

WGK

WGK 1

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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pH dependent photocatalytic hydrogen evolution by self-assembled perylene bisimides.
Nolan MC, et al.
Journal of Material Chemistry A, 5(16), 7555-7563 (2017)
Fabrication of gold nanoparticles using a trithiol (thiocyanuric acid) as the capping agent.
Tan Y, et al.
Langmuir, 18(8), 3392-3395 (2002)
Preparation of gold, platinum, palladium and silver nanoparticles by the reduction of their salts with a weak reductant-potassium bitartrate.
Tan Y, et al.
Journal of Materials Chemistry, 13(5), 1069-1075 (2003)

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